In each step the LZSS algorithm sends either a character or a pair. Among these, perhaps character "e" appears more frequently than "x", and a pair of length 3 might be commoner than one of length 18, say. Thus, if we encode the more frequent in fewer bits and the less frequent in more bits, the total length of the encoded text will be diminished. This consideration suggests that we use Huffman or arithmetic coding, preferably of adaptive kind, along with LZSS.-In each step the LZSS algorithm sends either a character or a lt;position, lengthgt; pair. Among these, perhaps character "e" appears more frequently than "x", and a lt;position, lengthgt; pair of length 3 might be commoner than one of length 18, say. Thus, if we encode the more frequent in fewer bits and the less frequent in more bits, the total length of the encoded text will be diminished. This consideration suggests that we use Huffman or arithmetic coding, preferably of adap
优秀的矢量量化源代码,可以很好的应用于图像压缩以及基于内容的图像检索。vc++源代码-outstanding VQ source code can be good for image compression and content-based image retrieval. Vc++ source code
本程序包用标准C++实现了Huffman编码以及解码的基本类,并且通过MFC编写了测试程序,同时显示了各项压缩指标。是学习编码的基本入门资料。-this program use standard c++ to implement Huffman coding and decoding fundamental class,it is tested by a MFC program,which display compression information.it is begginer s material.
wavelet_fractal_compressor小波技术与分形技术相结合进行图像压缩,压缩效果好,但是运行时间比较长。作为实验还是可以用的-wavelet_fractal_compressor wavelet technology and fractal technology combining image compression, compression effects, but relatively long running time. Can be used as an experimental or the